Rotary electro-magnetic engine



(No Model.)

H. P. WHITE. ROTARY ELECTRO MAGNETIC ENGINE.

No. 511,570. y Patented Dea-26, 1893.

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MMM @y FW 9%@ /Q J, Mm W7 'UNITED STATES PATENT OFFICE.

HENRY .PARKER lVllI'lE, OF KALAMAZOO, MICHIGAN.

ROTARY ELECTRO-MAGNETIC ENGINE.

SPECIFICATION forming part of Letters Patent No. 511,570, dated December 26, 1893.

Application filed February l5, 1893, Serial No. 462,482. (No model.)

To all whom, t may concern:

Beit known that I, HENRY PARKER WHITE, a citizen of the United States, residing at Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented certain new and useful Improvements in Rotary Electro-Magnetic Engines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings,which form part of this specification.

My invention relates to improvements in rotary electro-magnetic engines.

The object of my invention is to provide a rotary electro-magnetic engine having a multipolar armature so Wound, constructed and arranged between the open poles of a double limb ring .field magnet, as to be rotated upon its axis by the combined forces of elementary magnetic attraction and repulsion, and also that force exerted-by the tendency of a magnetic pole to move past an electrified wire.

The object of my invention is also to provide a rotary electro-magnetic engine whose multipolar armature wound and constructed as above described is encircled by a double limb ring field magnet having at diametrically opposite points of its inside surface polar projections which extend from the inside surface to points about even with said surface of said field magnets coils; thus forming in conjunction with said coils a completely closed circle around said armature, which having its points of electric commutation located within the zone of said field magnets polar projections, will always present to each pole of said field magnet one projection of north polarity, and one projection of south polarity and as the principle of winding the wire upon said armature secures north polar magnetism to one half ofits polar projections, and south polar magnetism to the other half, it follows that each pole of said field magnet is constantly attracting and repelling the poles of said armature, and the magnetized poles of said armature are constantly exerting themselves to move past the electrified coils of said field magnet; which forces all tending in one direction. will combine to form the eliicient mechanical force of my rotary electro magnetic engine.

My invention consists of the novel construction and combination of the several parts as will be hereinafter set forth and particularly pointed out in the claims.

The object of my invention as above set forth, is accomplished by the mechanism illustrated in the accompanying drawings form ing part of this specification, in which similar letters of reference' indicate corresponding parts in both views.

Figure l is an end View of my rotary electromagnetic engine having the central portion of the bearing casting broken away to show the armature A in full, and also to show the armature coils P and the folds H in section. Fig. 2 is a longitudinal vertical section of my improvement on the dotted line I-I, in Fig. l, having the brushes N, N, drawn back through the receiving rods O, O, to show each brush in full.

Referring now to the drawings, the cylindrical armature A constructed of any proper highly magnetic substance, is provided upon its outer convex surface with any desired number of polar projections V as seen 1n Figs. l and'Z. The said projecting pole pieces are preferably laminated but they may consist, with the body of the armature, of one unbroken body of metal. The armature coils l), as seen in Figs. l and 2, are wound upon said projecting pole pieces V, each polar projection carrying one complet-e coil, which is wound upon it in the usual manner of winding magnets, viz: by first fastening one end of the wire to one ofthe conducting plates W of the commutator R; wind the said wire upon one of the projecting poles V of the armature A until said pole has received as many wire turns asis desired for one coil of the armature; then remove the insulation from the wire at the proper point and connect it to the next conducting plate lV of the commutator R as seen at S in Fig. l; then wind the next polar projection V of said armature A in the same manner, with the caution that the said wire passes around the pole in the same direction; and in the above manner wind all the polar projections V of the ar mature A properly connected with the con- IOO ductingplates W of said commutator R, and

after winding the last pole of said 'armature connect th'e'end of the wire with the conduct` ing plate W which received the beginning 5 wire, thus forming the armature coils in an endless wire. l

From the above manner of winding it follows that the electric current in its passage around the armature A from the brush connection N+ to the brush connection N-, will have to fiow in an opposite direction through the adjoining halves of all the coils as shown by the lsingle head arrows, Fig. 1 which indicates the direction in which the velectric currents fiow, and consequently the coils have a tendency to neutralize the magnetic effect of each other. To obviate this difficulty a thin sheet of magnetic rmaterial is bent in the form ot' a hollow wedge having a vcircular head with its two ends terminating at its point, and is inserted betweeneach of the adjoining, coils of Said armature vA as seen at F in Fig. 1. The said circular head hollow wedges Fand the said armature coils P are held in proper position by the binding wires I Figs. 1 and 2, which pass around the armature and are rigidly secured in a well known manner. The armature A is then mounted in the usual manner upon a suitable revoluble shaft Q which shaft is properly journaled in the bearing castings B and B, constructed of suitable diamagnetic material and 'rigidly secured to the field magnet G at either extremity by means of the cap screws c, c, c, c, in a well known manner as seen in Fig, 1.

The .field magnet G as seen in Figs. 1 and 2 is a rin'g ofproper size, strength and material, having diamet-rcally opposite centripetal polar 'projections D, D, said yprojecting poles preferably extending beyond theV inner su'rface of said field magnet G to about the same distance occupied by the field coils H; thus forming in connection with the said field armatureA as seen in Fig. 1. The field coils H, H, may be if desired, either wound with fine wire andshunted, or wound with coarse wireand coupled in series with the armature A, but in either case the last layer of wire on the Asaid coils H, H, should lie about on a linewith the surface of the polar projections D,fD, of the field magnet G. The said field magnet will thus avoid all objectionable corners in the construction, and will have the shortest possible magnetic orbit in a position natural to the magnetic curves; and the said field coils H, H, from the nature of their position will be made to perform the double office or -function of magnetizing'the field magnet G, and also of inducing the magnetized polar projections of the armature A to move past` thejelectrified wires of said coils in al given direction according to the laws of electromagnetic induction. A brush rack Z is secoils a completely closed circle around the cured in the usual manner upon the bearing castings 'Bas :seen in Fig. 2 said brush rack being properly insulated from the receivlng rods O, O, which support the brushes N and N, in their proper position against the commutator R, in a well knownmanner.

The commutator R, of any approved construction, is mounted in the usual manner on the armature shaft Q. The pulley Y seen in Fig. 2 or other suitable device may be used 75 as a convenient delivering medium for the force of my machine. p

In Fig. l the singlehead arrows indicate the direction of the electric currents in the armature and .field coils, as arranged in my construction above described. The double headed arrows indicate the paths and direction of them'agnetic vlines of force through the same;` N vand S indicate the respective points of difference `of magnetic potential, and the 'feathered arrows i-r'indicate the direction in which the armature'A would turn under the above conditions.

It will readily be seen in the above construction that by causing the polar projections 'of said armature to. pass "as nea-r the polar projections of said 'field magnet "as is consistent with the armatures free Erotation, I not only secure the largest per cent. lpossible of' the elementary force of magnetic attrac- 95 tion and repulsion which 'is exerted `between the eXtreme points of said pclarp'roject-ions, but 'from the position of thefield coils H, KH, it follows that the magnetic.polarprojections of said armature will receive from said field roo coils an impulse to move pastsai'd field coll's electrified wires in a given directionfaccording to the laws of'electro-ma'gnetic induction.

As the electric currents in thev armature coils flow at the points of commutation in the :o5 saine direction through the adjoininghalves of the fourbrush 'connected coils, it yfollows since said point of commutation lis located within the zone of said eld magnets Apolar projections, that the electrified wires `inthe no adjoining halves of said four brushiconnected lcoils will'also receive an impulse from 'the polar projection of said-field magnet to move past said field xnagnets polar projections in :a given direction'according to the well known I 15 laws of electro-magnetic induction.

By referring to Fig. 1 it will 'readily be seen that in the above described construction, theseveral sources of force are alltending in one direction and consequently'will'be united 12o upon the pulley Y, or vother delivering -niedium of the machine, in a'multipotent state of efficient mechanical force.

y Having thus described my invention, what I claim as new and useful, and desire to :se- 125 cure by Letters Patent, isf.- u.

1. In a rotary electromagnetic engi'ne, lthe combination of a multipolar armature ,magnet and its lproper coils, with agpro'per number of circular head hollow wedges of nmttg- 13o netic material interposed between said armabetween said armature coils, all constructed tures adjoining coils for the purpose and in and arranged substantially as hereinbefore the manner above set forth and described. set forth and described.

2. In a rotary electromagnetic engine, the Signed by me this 10th day of February, l 5 combination of a double limb ring field inag- 1893.

net having diametrically opposite centripetal HENRY PARKER WHITE polar projections and itsproper coils with a multipolar armature magnet and its proper Witnesses: coils, in combination with circular head hol- ADELBERT D. HARRIS, io low wedges of magnetic material interposed 1 GEO. WT. MONTGOMERY. 

